Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Shoulderguards of the Unflanked Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Shoulderguards of the Unflanked suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Shoulderguards of the Unflanked is part of the transmog set Gatecrasher's Battleplate (Warrior, Paladin and Death Knight only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Shoulderguards of the Unflanked Fits
Other Items Named Shoulderguards of the Unflanked
2 other items in the current build are also called Shoulderguards of the Unflanked. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Shoulderguards of the Unflanked
Blizzard numbers items as they are created, so the named items next to ID 86780 (86775 to 86785) were usually added in the same batch as Shoulderguards of the Unflanked: the same quest line, zone, vendor or reward set.